Attachment for phonographs.



No. 673,267. Patented Apr. 30, I90l.

H. A. HULL. ATTACHMENT FOR PHDNOGRAPHS.

' (Application rfile'd Nov. 14, 1900.)

(No Model.) 2 Sheets-Sheet No. 673,267. Patented Apr. 30, I901".

v H. A. HULL. ATTACHMENT FOR PHONOGRAPH S.

(Application fild Nov. 14, 1900.) (No Model.) 2 Shasta-Sheet 2.

therein, adapting that end to be secured to UNITED STATES PATENT OFFICE,

HENRY A. HULL, OF NEW HAVEN, CONNECTICUT.

ATTACHMENT FOR PHO NOGRA'PHS.

SPECIFICATION formingpart of Letters Patent No. 673,267, dated April 30, 1901. Application filed November 14, 1900. serial No. 36,499. (No model.)

To all whom u may concern:

Be it known that I, HENRY A. HULL, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Attachments for Phonographs; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, 1n-

Figure l, a front view of a phonograph having my attachments applied thereto; Fig. 2, a top view of the sameyFig. 3, a gate-end view; Fig. 4, a perspective view of the yoke detached; Fig. 5, a perspective View of the auxiliary bearing; Fig. 6, a perspective View of the sleeve and the parts carried thereby, the diaphragm-arm being broken away; Fig. 7, a perspective view of the cylinder-shell; Fig. 8, a sectional view showing the cylindershell mounted upon the usual cylinder-bearmg.

This invention relates to an improvement in attachments for phonographs whereby a home or small phonograph may be readily transformed into a concert-grand or large phonograph, or, in other words, a phonograph adapted to employ small cylinderrecords changed to operate with a large cylinder-record, the object of the invention being to so construct the attachment that it can be readily applied to and removed from a phonograph and without requiring careful adjustment of parts; and it consists in the construction hereinafter described, and particularly recited in the claims.

The body A of the phonograph is of ordinary construction, provided at one end with a hearing B for one end of the mandrel feed-screw, a bearing B near the center, and at the opposite end with a swinging gate 0 and at the rear with a bearing-rod D. To adapt a small machine to receive and operate with a large record, I remove the mandrel feed-screwE, and into the bearings B B thereof I insert a yoke comprising a bar F, provided at one side with a projecting trunnion G, adapted to enter the bearing B, and at the opposite end with a block H, having an opening H the bearing B bya bolt 79, extending through the opening in which a pointed center was formerly mounted as a support for the mandrel feed-screw, and from the bar and head are upwardly-extending arms IJ, corresponding to the bearings B B. Extending rearwardly from the head is an arm K, having an opening L therein, adapting it to be passed over the back rod D. As an additional support for the yoke I preferably form the bar F with a foot F, which bears upon the body A. The arm I is formed with an opening t, adapted to receive the bearing-point B which was before mounted in the bearing B, and the arm J will have an opening J, through which the mandrel passes. Preferably the arm J will have aslotted plate J adjustably secured to one of its side faces and notched at its upper end, which extends into the line of the opening J and so that the bearing for the said feed-screw is made adjustable. In place of the usual sleeve on the back rod D, I employ a sleeve M, provided at one end with a diaphragm-arm N, which instead of extending rearward over the mandrel extends for ward beneath it and upward over the same, as clearly shown in Fig. 3. At the opposite end the sleeve M is provided with an upwardly-extending nut-arm 0, having a head 0' at its upper end, adapted to support a feed-nut arm P, and this head 0 is provided at its outer end with a raised boss Q, through which an adjusting-screw R extends to bear upon the feed-nut arm P, which passes beneath the boss, so as to depress the same with more or less friction upon the mandrel feed-screw E. This mandrel feed-screw is mounted in the bearings formed at the upper ends of the armsI J, one end centered on the bearing-point B and its center supported by the arm J. To support the opposite end of the mandrel, I employ a gate extension S,

which is secured to the gate 0 by a bolt 0',

extending through the opening in which the bearing-point was mounted, and to adjust the extension I employ adjusting-screws c c, which pass down through the extension and bear upon the gate. The extension is provided at its upper end with an opening S, adapted to receive the bearing-point T, which was previously mounted in the gate C. Over the ordinary cylinder-bearing U on the feedscrew mandrel I place a cylinder-shell Vof suitable size to receive and support a large record. As before stated, the diaphragmarm M extends above the enlarged cylinder shell and preferably is provided with an opening to receive a collar W, which is screw-threaded into the upper end of the arm, which collar receives the ordinary diaphragm, and as this collar is adjustable it is apparent that the diaphragm may be adjusted to or from the record on the mandrel. v On the mandrel feed-screw E is the usual driving-pulley X, which for large cylinders will preferably be larger than that used for small cylinders, and on the head H is a boss Y, which guides the belt and prevents it from slipping from the driving-pulley and prevents the removal of the shaft. It will thus be seen that the same mandrel feed-screw and the points for supporting the same are employed as in small machines of usual construction. The frame is the same, and therefore the only parts necessary to adapt a small machine to operate with a large record are the yoke, sleeve, and its adjacent parts, gate extension, and a cylinder-shell. These parts are so simple in construction that they 'may be readily cast and adapted to be applied to machines as found on the market.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is r 1. In a phonograph, the combination with the usual mandrel-feed-screw bearings, mandrel feed-screw, swinging gate and mandrelsupport, of a yoke adapted to be mounted in' the said mandrel-feed-screw bearings, said yoke provided with upwardly-extending arms for supporting the said mandrel feed-screw,

an upwardly-extending gate extension adapted to be secured to the said swinging gate, and adapted to carry the said mandrel-support at its upper end, a back-rod sleeve carrying a diaphragm-arm, and a cylinder-shell, substantially as described.

2. In a phonograph, the combination with the usual bearings for the mandrel feed-screw, the mandrel feed {screw, the back rod, the swinging gate and the support for the mandrel, of a yoke adapted to be mounted in the said bearings for the mandrel feed-screw, and formed with upwardly-extending arms with bearings for the said mandrel feed-screw, a rearwardly-extending arm for engagement with the said back rod, a gate extension adapt- 5 5 ed to be secured to the said swinging gate, and adapted at its upper end to carry the said support for the mandrel, a sleeve mounted upon the back rod and carrying a diaphragmarm which extends forward below the mandrel and upward above the same, the said mandrel-arm carrying at its upper end an adjustable collar adapted to receive a diaphragm, substantially as described.

3. In a phonograph, the combination with the usual bearings for the mandrel feed-screw, mandrel feed-screw, back rod, swinging gate, and support for the mandrel, of a yoke adapted to be mounted in the said bearings for the mandrel feed screw, and formed with upwardly-extending arms having bearings for the said mandrel feed-screw, a rearwardlyextending arm for engagement with the said back rod, a gate extension adapted to be secured to the said swinging gate and adapted at its upper end to carry the said support for the mandrel, a sleeve mounted upon the said back rod, and carrying a diaphragm-arm which extends forward below the mandrel and upward above the same, substantially as described.

4;. In a phonograph, the combination with the usual bearings for the mandrel feed-screw, mandrel feed-screw, back rod, swinging gate and support for the mandrel, of a yoke adapted to be mounted in the said bearings for the mandrel feed -screw, and formed with up- Wardly-extending arms having bearings for the said mandrel feed-screw, a rearwardly-extending arm for engagement with the said back rod, a gate extension adapted to be secured to the said swinging gate, and adapted at its upper end to carry the said support for the mandrel, a sleeve mounted upon the said back rod and carrying a diaphragm-arm and a nut-arm formed at its upper end with a head adapted to support a feed-nut arm, said head formed with a boss to receive an adj usting-screw which bears upon said feed-nut arm, and a cylinder adapted to be set over the mandrel, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

HENRY A. HULL. Witnesses:

FRED. O. EARLE, GEORGE D. SEYMOUR. 

